Microwave-assisted synthesis and upconversion luminescence of NaYF4:Yb, Gd, Er and NaYF4:Yb, Gd, Tm nanorods

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dc.contributor.author Nannuri, Shivanand H.
dc.contributor.author Singh, Simranjit
dc.contributor.author Misra, Superb K.
dc.contributor.author Chidangil, Santhosh
dc.contributor.author George, Sajan D.
dc.coverage.spatial United Kingdom
dc.date.accessioned 2022-03-10T14:09:00Z
dc.date.available 2022-03-10T14:09:00Z
dc.date.issued 2022-02
dc.identifier.citation Nannuri, Shivanand H.; Singh, Simranjit; Misra, Superb K.; Chidangil, Santhosh and George, Sajan D., “Microwave-assisted synthesis and upconversion luminescence of NaYF4:Yb, Gd, Er and NaYF4:Yb, Gd, Tm nanorods”, Methods and Applications in Fluorescence, DOI: 10.1088/2050-6120/ac58e6, vol. 10, no. 2, Apr. 2022. en_US
dc.identifier.issn 2050-6120
dc.identifier.uri http://dx.doi.org/10.1088/2050-6120/ac58e6
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/7569
dc.description.abstract Anisotropic rare-earth ion (RE3+) doped fluoride upconversion particles are emerging as a potential candidate in diverse areas, ranging from biomedical imaging to photonics. Here, we develop a facile strategy to synthesize NaYF4:Yb, Er, Gd and NaYF4:Yb, Tm, Gd upconversion nanorods via microwave synthesis route by controlling the synthesis time and compared the optical properties of similar nanorods prepared via solvothermal technique. With the increase in synthesis time, the phase of the particle was found to change from mixed-phase to purely hexagonal and the morphology of the particles change the mixed phase of spherical and rod-shaped particles to completely nanorods for a synthesis time of 60 minutes. Further, the intrinsically hydrophobic particles changed to hydrophilic by removal of oleic capping via acid treatment and the amine-functionalized silica coating. The upconversion luminescence, as well as laser power-dependent emission properties of the surface-modified particles, elucidate that the surface modification route influence the upconversion luminescence as well as solvent-dependent emission properties. Moreover, the laser power-dependent studies elucidate that the upconversion process in a multi-photon process.
dc.description.statementofresponsibility by Shivanand H. Nannuri, Simranjit Singh, Superb K. Misra, Santhosh Chidangil and Sajan D. George
dc.format.extent vol. 10, no. 2
dc.language.iso en_US en_US
dc.publisher IOP Publishing en_US
dc.subject Upconversion luminescence en_US
dc.subject Microwave synthesis en_US
dc.subject Anisotropic rare-earth ion en_US
dc.subject Photonics en_US
dc.subject Hydrophobic particles en_US
dc.title Microwave-assisted synthesis and upconversion luminescence of NaYF4:Yb, Gd, Er and NaYF4:Yb, Gd, Tm nanorods en_US
dc.type Article en_US
dc.relation.journal Methods and Applications in Fluorescence

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